Pith Number

pith:VARIFBGM

pith:2012:VARIFBGM563UKCNSBSFBR5CL45

not attested not anchored not stored refs pending

Challenges in Truncating the Hierarchy of Time-Dependent Reduced Density Matrices Equations: Open Problems

Ali Akbari, Angel Rubio, Mohammad Javad Hashemi, Risto M. Nieminen, Robert van Leeuwen

arxiv:1204.4395 v1 · 2012-04-19 · cond-mat.mtrl-sci

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VARIFBGM563UKCNSBSFBR5CL45}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T03:52:41.331618Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8228284ccefb74509b20c8a18f44be77bc2b7c5bd3b3b39732e8b7070cda7e0

Aliases

arxiv: 1204.4395 · arxiv_version: 1204.4395v1 · doi: 10.48550/arxiv.1204.4395 · pith_short_12: VARIFBGM563U · pith_short_16: VARIFBGM563UKCNS · pith_short_8: VARIFBGM

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/VARIFBGM563UKCNSBSFBR5CL45 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: a8228284ccefb74509b20c8a18f44be77bc2b7c5bd3b3b39732e8b7070cda7e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b70308d6c68d90698ea719920999068eca574cb030b8dd33da2d352898f5a07a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2012-04-19T16:05:48Z",
    "title_canon_sha256": "c9f3c8080ab1a1e4ab205b277f8c91fd13be1fca49195dc9e24c8f302d45436f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.4395",
    "kind": "arxiv",
    "version": 1
  }
}